Home / 20,847.45-31,261.73-8,995.63

Finding the Fourth Proportional to 20,847.45, 31,261.73 and 8,995.63

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Solution

The fourth proportional to 20,847.45, 31,261.73 and 8,995.63 is: 13,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.45 : 31,261.73 = 8,995.63 : x
  2. Step 2: Convert to fraction form
    20,847.45/31,261.73 = 8,995.63/x
  3. Step 3: Cross multiply
    20,847.45x = 31,261.73 × 8,995.63
  4. Step 4: Simplify right side
    20,847.45x = 281,218,956.24
  5. Step 5: Solve for x
    x = 281,218,956.24/20,847.45
  6. Step 6: Final answer
    x = 13,489.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.